DH Instruments E-DWT-H, Руководство по эксплуатации и обслуживанию

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E-DWT-H OPERATION AND MAINTENANCE MANUAL
© 2009 DH Instruments, a Fluke Company Page 78
4.4.3 Program Message Description Overview
Each program message description is separated into the following sections:
Purpose A brief description of the programs message’s function.
Command This is the Enhanced program message syntax to send data to the RPM4-E-DWT or to
execute an RPM4-E-DWT function. The RPM4-E-DWT
must be set to use the enhanced
format (see Section 3.9.2.3) to use the syntax and style shown. It may be sent alone, or
followed by at least one white space and additional argument(s) to show that arguments
can be passed. If there are multiple arguments, then commas must separate them. The
RPM4-E-DWT will reply and you
must wait for this reply. If this field is not listed in the
program message description, then the Command type is not supported when using the
Enhanced format.
Query This is the Enhanced program message syntax to request data from the RPM4-E-DWT. The
RPM4-E-DWT
must be set to use the enhanced format (see Section 3.9.2.3). The
RPM4-E-DWT will always reply to a query. You must wait for this reply before issuing
another program message. If this field (Query) is not listed in the program message
description, then the Query type for the program message is not supported when using
the Enhanced format.
Classic This is the Classic program message syntax to send data to the RPM4-E-DWT, to
execute an RPM4-E-DWT function, or to query for data. The RPM4-E-DWT
must be set
to use the classic format (see Section 3.9.2.3). The command may be followed by a ‘(=)’
and additional argument characters to show that argument(s) can be passed. If there are
multiple arguments, then commas must separate them. The RPM4-E-DWT will always reply
to a program message.
You
must wait for this reply before issuing another program message. If this field is not listed
in the program message description, then it is not supported when using the classic
format.
Suffix Some commands support an optional suffix. This suffix is used to specify a Q-RPT to which
the command applies, since many settings are Q-RPT specific:
Suffix of ‘1’ for Hi Q-RPT access
Suffix of ‘2’ for Lo Q-RPT access
If an optional suffix is allowed but not given, then the “Active Q-RPT” will be addressed. The
“Active Q-RPT” is the Q-RPT that is currently displayed on the top line of the front panel of the
RPM4-E-DWT, and is identified by the text label in the upper right of the pressure display
screen. The last Q-RPT ranged or selected using the “RANGE” or “ARANGE” commands is
the “Active” Q-RPT. The “ARANGE”, “RANGE” or “RPT” command query can be used to
determine which Q-RPT is currently active.
Arguments If the program message can be used to set data inside the RPM4-E-DWT, then this section
describes the arguments and their limits.
Default If the program message can be used to set data inside the RPM4-E-DWT, then this line
shows (using the enhanced format) the default setting from the factory.
Remarks This field has the details and remarks about the command.
Example Examples are given for the enhanced and classic methods.
Enhanced: An example of the use of an enhanced format program message to be
sent to the RPM4-E-DWT is shown. The message sent to the
RPM4-E-DWT appears after the
“Cmd sent:” label. If only a Query type
exists, the “Query sent:” label is shown instead. Directly under this
label, “Query reply” shows a typical reply to a query type. “Reply:”
shows that a query format does not exist. It may have a short description
next to it.
Classic: An example of the use of a classic program message to be sent to the
RPM4-E-DWT is shown. The command sent to the RPM4-E-DWT
appears after the
“Cmd sent:” label. The “Reply” label shows a typical
reply to the “Sent” example. It may have a short description next to it.
Errors If the program message can report an argument error, the types of errors are listed.
The error message is replied after receiving the program message. The
“ERR” or
“ERR?” query can be used to retrieve a text description of the error.
See Also Indicates related commands ( “----“ ) and refers to manual sections giving detail on
RPM4-E-DWT operation corresponding to the program message.